Photoelectric devices and image sensors and electronic devices

    公开(公告)号:US10998514B2

    公开(公告)日:2021-05-04

    申请号:US16178691

    申请日:2018-11-02

    摘要: A photoelectric device includes a first photoelectric conversion layer including a heterojunction that includes a first p-type semiconductor and a first n-type semiconductor, a second photoelectric conversion layer on the first photoelectric conversion layer and including a heterojunction that includes a second p-type semiconductor and a second n-type semiconductor. A peak absorption wavelength (λmax1) of the first photoelectric conversion layer and a peak absorption wavelength (λmax2) of the second photoelectric conversion layer are included in a common wavelength spectrum of light that is one wavelength spectrum of light of a red wavelength spectrum of light, a green wavelength spectrum of light, a blue wavelength spectrum of light, a near infrared wavelength spectrum of light, or an ultraviolet wavelength spectrum of light, and a light-absorption full width at half maximum (FWHM) of the second photoelectric conversion layer is narrower than an FWHM of the first photoelectric conversion layer.

    Organic photoelectric device and image sensor and electronic device

    公开(公告)号:US10804327B2

    公开(公告)日:2020-10-13

    申请号:US16136584

    申请日:2018-09-20

    摘要: Disclosed are an organic photoelectric device including a first electrode and a second electrode facing each other and a photoelectric conversion layer disposed between the first electrode and the second electrode and selectively absorbing light in a green wavelength region, wherein the photoelectric conversion layer includes a first and second photoelectric conversion materials, a light-absorption full width at half maximum (FWHM) in a green wavelength region of the first photoelectric conversion material is narrower than the light-absorption FWHM in a green wavelength region of the second photoelectric conversion material, and the first and second photoelectric conversion materials satisfy Relationship Equation 1, and an image sensor and an electronic device including the same. Tm2(° C.)−Ts2(10)(° C.)≥Tm1(° C.)−Ts1(10)(° C.)   [Relationship Equation 1]

    Quantum dot electroluminescence device

    公开(公告)号:US11631815B2

    公开(公告)日:2023-04-18

    申请号:US16729646

    申请日:2019-12-30

    IPC分类号: H01L51/00 H01L51/50

    摘要: A device having design film thicknesses, to suppress non-uniformity of a light emitting surface, to provide a quantum dot electroluminescence device with good luminous efficiency and light emitting life-span, and to provide an excellent quantum dot electroluminescence device with luminous efficiency and light emitting life-span. A quantum dot electroluminescence device including a hole transport layer, an electron transport layer, and a light emitting layer disposed between the hole transport layer and the electron transport layer, wherein the hole transport layer includes a polymer material and a low molecular material, the light emitting layer includes a quantum dot having a core-shell structure, and a residual film ratio of the hole transport layer is greater than or equal to about 95%.

    Organic photoelectric device and image sensor and electronic device

    公开(公告)号:US11456336B2

    公开(公告)日:2022-09-27

    申请号:US17022567

    申请日:2020-09-16

    摘要: Disclosed are an organic photoelectric device including a first electrode and a second electrode facing each other and a photoelectric conversion layer disposed between the first electrode and the second electrode and selectively absorbing light in a green wavelength region, wherein the photoelectric conversion layer includes a first and second photoelectric conversion materials, a light-absorption full width at half maximum (FWHM) in a green wavelength region of the first photoelectric conversion material is narrower than the light-absorption FWHM in a green wavelength region of the second photoelectric conversion material, and the first and second photoelectric conversion materials satisfy Relationship Equation 1, and an image sensor and an electronic device including the same. Tm2(° C.)−Ts2(10)(° C.)≥Tm1(° C.)−Ts1(10)(° C.)  [Relationship Equation 1]